A member asked:
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why do we use sodium flouride instead of calcium flouride in our toothpastes, mouthwashes etc? it's much less toxic than sodium flouride.

3 doctor answers
Dr. Gary Sandler
53 years experience Dentistry
More effective: Because it's more effective and it is safe when used properly. When examining calcium Fluoride vs. Sodium Fluoride and teeth, in terms of efficient delivery of Fluoride to the teeth, sodium Fluoride is the desired choice because of its solubility. In aqueous solution, sodium Fluoride has a solubility of 18, 000 ppm, while calcium Fluoride only has a solubility of 8 ppm.
Answered on Jun 25, 2014
Dr. Joseph Leon
20 years experience Dentistry
Not bio-available: The short answer is that calcium Fluoride is so extremely insoluble as to be considered unusable by your body. Sodium and stannous fluorides are able to be broken down and then the fluorides can enter into and bond with the enamel. Enamel is made of a ring of ions and the Fluoride substitutes in the center to form a more stable ring. This new "ring" is more resistant to decay.
Answered on Oct 3, 2018
4
4 thanks
Dr. James Goodpaster
28 years experience Dentistry
Chemistry of Mouth: Build up on your teeth called tartar or calculus is chemically calcium carbonate (same as limestone). If we used calcium Fluoride in toothpaste, it would increase the amount of build-up on the teeth leading to more periodontal problems and require you to need your teeth cleaned more frequently.
Answered on Jun 25, 2014

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Related questions:

A 38-year-old member asked:
Dr. Jeffrey Jarvis
36 years experience Dentistry
After a few times: How long? Assuming you are an adult, ingestion of sodium Fluoride is not critical for you. Rinse as directed, spit excess, and you are done. For ch ... Read More
A 56-year-old male asked:
Dr. Theodore Davantzis
39 years experience Dentistry
Toothpaste...: .... and municipal water supplies already have fluoride in the appropriate concentrations. Dental offices have only been closed for three months; mixi ... Read More
A 33-year-old female asked:
Dr. James Ferguson
45 years experience Pediatrics
Relax: I wouldn't make this a regular activity but it should not do any lasting harm. Four is a bit young for some kids to remember to spit out toothpaste &a ... Read More
A 38-year-old member asked:
Dr. Howard Schneider
33 years experience Pediatric Dentistry
You can: As long as you are not swallowing lots of the mouthwash and/or toothpaste it is no problem and it may help keep your tooth enamel healthy. You can no ... Read More

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